Answer: Inertia
Explanation: without inertia gravity could pull down whatever it wanted, Inertia is whats keeping the rock on the hill
Answer:
The force exerted by the biceps is 143.8 kgf.
Explanation:
To calculate the force exerted by the biceps, we calculate the momentum in the elbow.
This momentum has to be zero so that her forearm remains motionless.
Being:
W: mass weight (6.15 kg)
d_W= distance to the mass weight (0.425 m)
A: weight of the forearm (2.25 kg)
d_A: distance to the center of mass of the forearm (0.425/2=0.2125 m)
H: force exerted by the biceps
d_H: distance to the point of connection of the biceps (0.0215 m)
The momemtum is:
The force exerted by the biceps is 143.8 kgf.
F = m*a
So F = 2000 kg * 2 m/s^2 = 4000 N
A. The average speed is
<span>12 km/18 min = 0.67 km/min
b. The average velocity is
10.3 km/18 min = 0.57 km/min
c. average speed is 24 km/450 min = 0.05 km/min
average velocity = 0 since the displacement is 0.
</span><span>
</span>
Answer:
it is the protons
Explanation:
the protons is positively charged and the number can tell you the element in the periodic table